using System.Text.Json;
using Microsoft.Extensions.Logging;

namespace DocumentCreationSystem.Models.IntelligentPlanning
{
    /// <summary>
    /// 智能规划请求模型
    /// </summary>
    public class PlanningRequest
    {
        public string Id { get; set; } = Guid.NewGuid().ToString();
        public string UserId { get; set; } = string.Empty;
        public string ProjectId { get; set; } = string.Empty;
        public ComplexIntent UserIntent { get; set; } = new();
        public ProjectContext? ProjectContext { get; set; }
        public Dictionary<string, object> Parameters { get; set; } = new();
        public DateTime CreatedAt { get; set; } = DateTime.Now;
    }

    /// <summary>
    /// 复杂意图模型
    /// </summary>
    public class ComplexIntent
    {
        public string OriginalInput { get; set; } = string.Empty;
        public Intent PrimaryIntent { get; set; } = new();
        public List<Intent> SecondaryIntents { get; set; } = new();
        public Dictionary<string, object> Context { get; set; } = new();
    }

    /// <summary>
    /// 意图模型
    /// </summary>
    public class Intent
    {
        public string Id { get; set; } = Guid.NewGuid().ToString();
        public IntentType Type { get; set; } = IntentType.ContentGeneration;
        public string Description { get; set; } = string.Empty;
        public List<string> Keywords { get; set; } = new();
        public float Confidence { get; set; } = 0.0f;
        public Dictionary<string, object> Parameters { get; set; } = new();
    }

    /// <summary>
    /// 项目上下文模型
    /// </summary>
    public class ProjectContext
    {
        public string ProjectId { get; set; } = string.Empty;
        public string ProjectType { get; set; } = string.Empty;
        public Dictionary<string, object> Metadata { get; set; } = new();
        public List<string> RecentFiles { get; set; } = new();
        public string Status { get; set; } = string.Empty;
    }

    /// <summary>
    /// 执行结果模型
    /// </summary>
    public class ExecutionResult
    {
        public string Id { get; set; } = Guid.NewGuid().ToString();
        public string RequestId { get; set; } = string.Empty;
        public ExecutionStatus Status { get; set; } = ExecutionStatus.InProgress;
        public CharacterExecutionResult? CharacterExecutionResult { get; set; }
        public WorkflowExecutionResult? WorkflowExecutionResult { get; set; }
        public List<OptimizationSuggestion> OptimizationSuggestions { get; set; } = new();
        public Dictionary<string, object> Metrics { get; set; } = new();
        public DateTime StartedAt { get; set; } = DateTime.Now;
        public DateTime? CompletedAt { get; set; }
    }

    /// <summary>
    /// 角色执行结果模型
    /// </summary>
    public class CharacterExecutionResult
    {
        public List<Character> CreatedCharacters { get; set; } = new();
        public List<CharacterRelationship> Relationships { get; set; } = new();
        public CharacterAnalysis Analysis { get; set; } = new();
        public Dictionary<string, object> Metadata { get; set; } = new();
    }

    /// <summary>
    /// 角色模型
    /// </summary>
    public class Character
    {
        public string Id { get; set; } = Guid.NewGuid().ToString();
        public string Name { get; set; } = string.Empty;
        public string Description { get; set; } = string.Empty;
        public Dictionary<string, object> Attributes { get; set; } = new();
        public List<string> Traits { get; set; } = new();
        public string Background { get; set; } = string.Empty;
    }

    /// <summary>
    /// 角色关系模型
    /// </summary>
    public class CharacterRelationship
    {
        public string Id { get; set; } = Guid.NewGuid().ToString();
        public string Character1Id { get; set; } = string.Empty;
        public string Character2Id { get; set; } = string.Empty;
        public string RelationshipType { get; set; } = string.Empty;
        public string Description { get; set; } = string.Empty;
        public float Strength { get; set; } = 0.0f;
    }

    /// <summary>
    /// 角色分析模型
    /// </summary>
    public class CharacterAnalysis
    {
        public int TotalCharacters { get; set; }
        public Dictionary<string, int> CharacterTypes { get; set; } = new();
        public List<string> Insights { get; set; } = new();
        public float ComplexityScore { get; set; }
    }

    /// <summary>
    /// 工作流执行结果模型
    /// </summary>
    public class WorkflowExecutionResult
    {
        public string WorkflowId { get; set; } = string.Empty;
        public List<StepResult> StepResults { get; set; } = new();
        public WorkflowMetrics Metrics { get; set; } = new();
        public Dictionary<string, object> OutputData { get; set; } = new();
    }

    /// <summary>
    /// 步骤结果模型
    /// </summary>
    public class StepResult
    {
        public string StepId { get; set; } = string.Empty;
        public string StepName { get; set; } = string.Empty;
        public StepStatus Status { get; set; } = StepStatus.Pending;
        public string? Output { get; set; }
        public Dictionary<string, object> Data { get; set; } = new();
        public TimeSpan Duration { get; set; }
        public DateTime CompletedAt { get; set; } = DateTime.Now;
    }

    /// <summary>
    /// 工作流指标模型
    /// </summary>
    public class WorkflowMetrics
    {
        public TimeSpan TotalDuration { get; set; }
        public int CompletedSteps { get; set; }
        public int FailedSteps { get; set; }
        public float SuccessRate { get; set; }
        public Dictionary<string, double> CustomMetrics { get; set; } = new();
    }

    /// <summary>
    /// 优化建议模型
    /// </summary>
    public class OptimizationSuggestion
    {
        public string Id { get; set; } = Guid.NewGuid().ToString();
        public string Type { get; set; } = string.Empty;
        public string Title { get; set; } = string.Empty;
        public string Description { get; set; } = string.Empty;
        public float Priority { get; set; } = 0.0f;
        public List<string> Benefits { get; set; } = new();
        public Dictionary<string, object> Implementation { get; set; } = new();
    }

    // 枚举定义
    public enum IntentType
    {
        ContentGeneration,
        CharacterDevelopment,
        PlotPlanning,
        WorldBuilding,
        Analysis,
        Optimization
    }

    public enum ExecutionStatus
    {
        Pending,
        InProgress,
        Completed,
        Failed,
        Cancelled
    }

    public enum StepStatus
    {
        Pending,
        InProgress,
        Completed,
        Failed,
        Skipped
    }
}

namespace DocumentCreationSystem.Services.IntelligentPlanning
{
    /// <summary>
    /// 智能规划服务接口
    /// </summary>
    public interface IIntelligentPlanningService
    {
        Task<Models.IntelligentPlanning.ExecutionResult> ExecutePlanAsync(Models.IntelligentPlanning.PlanningRequest request);
        Task<List<Models.IntelligentPlanning.OptimizationSuggestion>> GetOptimizationSuggestionsAsync(string planId);
        Task<Models.IntelligentPlanning.ExecutionResult> GetExecutionResultAsync(string executionId);
    }

    /// <summary>
    /// 角色规划服务接口
    /// </summary>
    public interface ICharacterPlanningService
    {
        Task<Models.IntelligentPlanning.CharacterExecutionResult> PlanCharactersAsync(Models.IntelligentPlanning.Intent intent);
        Task<List<Models.IntelligentPlanning.Character>> GenerateCharactersAsync(string description, int count);
        Task<List<Models.IntelligentPlanning.CharacterRelationship>> AnalyzeRelationshipsAsync(List<Models.IntelligentPlanning.Character> characters);
    }

    /// <summary>
    /// 工作流规划服务接口
    /// </summary>
    public interface IWorkflowPlanningService
    {
        Task<Models.IntelligentPlanning.WorkflowExecutionResult> ExecuteWorkflowAsync(string workflowId, Dictionary<string, object> parameters);
        Task<List<Models.IntelligentPlanning.StepResult>> GetWorkflowStepsAsync(string workflowId);
        Task<Models.IntelligentPlanning.WorkflowMetrics> GetWorkflowMetricsAsync(string workflowId);
    }

    /// <summary>
    /// 优化服务接口
    /// </summary>
    public interface IOptimizationService
    {
        Task<List<Models.IntelligentPlanning.OptimizationSuggestion>> AnalyzeOptimizationOpportunitiesAsync(Models.IntelligentPlanning.ExecutionResult result);
        Task<Models.IntelligentPlanning.OptimizationSuggestion> GenerateOptimizationSuggestionAsync(string type, Dictionary<string, object> context);
        Task<bool> ApplyOptimizationAsync(string suggestionId, Dictionary<string, object> parameters);
    }

    /// <summary>
    /// 智能规划服务实现
    /// </summary>
    public class IntelligentPlanningService : IIntelligentPlanningService
    {
        private readonly ILogger<IntelligentPlanningService> _logger;

        public IntelligentPlanningService(ILogger<IntelligentPlanningService> logger)
        {
            _logger = logger;
        }

        public async Task<Models.IntelligentPlanning.ExecutionResult> ExecutePlanAsync(Models.IntelligentPlanning.PlanningRequest request)
        {
            try
            {
                _logger.LogInformation($"执行智能规划: {request.Id}");

                var result = new Models.IntelligentPlanning.ExecutionResult
                {
                    RequestId = request.Id,
                    Status = Models.IntelligentPlanning.ExecutionStatus.Completed
                };

                // 模拟执行结果
                result.CharacterExecutionResult = new Models.IntelligentPlanning.CharacterExecutionResult
                {
                    CreatedCharacters = new List<Models.IntelligentPlanning.Character>
                    {
                        new Models.IntelligentPlanning.Character
                        {
                            Name = "示例角色",
                            Description = "基于智能规划生成的角色"
                        }
                    }
                };

                result.WorkflowExecutionResult = new Models.IntelligentPlanning.WorkflowExecutionResult
                {
                    WorkflowId = "default-workflow",
                    StepResults = new List<Models.IntelligentPlanning.StepResult>
                    {
                        new Models.IntelligentPlanning.StepResult
                        {
                            StepId = "step-1",
                            StepName = "初始化",
                            Status = Models.IntelligentPlanning.StepStatus.Completed,
                            Output = "初始化完成"
                        }
                    }
                };

                result.CompletedAt = DateTime.Now;

                _logger.LogInformation($"智能规划执行完成: {result.Id}");
                return result;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "执行智能规划失败");
                throw;
            }
        }

        public async Task<List<Models.IntelligentPlanning.OptimizationSuggestion>> GetOptimizationSuggestionsAsync(string planId)
        {
            return new List<Models.IntelligentPlanning.OptimizationSuggestion>
            {
                new Models.IntelligentPlanning.OptimizationSuggestion
                {
                    Type = "Performance",
                    Title = "性能优化建议",
                    Description = "建议优化执行性能",
                    Priority = 0.8f
                }
            };
        }

        public async Task<Models.IntelligentPlanning.ExecutionResult> GetExecutionResultAsync(string executionId)
        {
            return new Models.IntelligentPlanning.ExecutionResult
            {
                Id = executionId,
                Status = Models.IntelligentPlanning.ExecutionStatus.Completed
            };
        }
    }

    /// <summary>
    /// 角色规划服务实现
    /// </summary>
    public class CharacterPlanningService : ICharacterPlanningService
    {
        private readonly ILogger<CharacterPlanningService> _logger;

        public CharacterPlanningService(ILogger<CharacterPlanningService> logger)
        {
            _logger = logger;
        }

        public async Task<Models.IntelligentPlanning.CharacterExecutionResult> PlanCharactersAsync(Models.IntelligentPlanning.Intent intent)
        {
            return new Models.IntelligentPlanning.CharacterExecutionResult
            {
                CreatedCharacters = await GenerateCharactersAsync(intent.Description, 3),
                Analysis = new Models.IntelligentPlanning.CharacterAnalysis
                {
                    TotalCharacters = 3,
                    ComplexityScore = 0.7f
                }
            };
        }

        public async Task<List<Models.IntelligentPlanning.Character>> GenerateCharactersAsync(string description, int count)
        {
            var characters = new List<Models.IntelligentPlanning.Character>();
            for (int i = 0; i < count; i++)
            {
                characters.Add(new Models.IntelligentPlanning.Character
                {
                    Name = $"角色{i + 1}",
                    Description = $"基于'{description}'生成的角色"
                });
            }
            return characters;
        }

        public async Task<List<Models.IntelligentPlanning.CharacterRelationship>> AnalyzeRelationshipsAsync(List<Models.IntelligentPlanning.Character> characters)
        {
            return new List<Models.IntelligentPlanning.CharacterRelationship>();
        }
    }

    /// <summary>
    /// 工作流规划服务实现
    /// </summary>
    public class WorkflowPlanningService : IWorkflowPlanningService
    {
        private readonly ILogger<WorkflowPlanningService> _logger;

        public WorkflowPlanningService(ILogger<WorkflowPlanningService> logger)
        {
            _logger = logger;
        }

        public async Task<Models.IntelligentPlanning.WorkflowExecutionResult> ExecuteWorkflowAsync(string workflowId, Dictionary<string, object> parameters)
        {
            return new Models.IntelligentPlanning.WorkflowExecutionResult
            {
                WorkflowId = workflowId,
                StepResults = await GetWorkflowStepsAsync(workflowId),
                Metrics = await GetWorkflowMetricsAsync(workflowId)
            };
        }

        public async Task<List<Models.IntelligentPlanning.StepResult>> GetWorkflowStepsAsync(string workflowId)
        {
            return new List<Models.IntelligentPlanning.StepResult>
            {
                new Models.IntelligentPlanning.StepResult
                {
                    StepId = "step-1",
                    StepName = "工作流步骤1",
                    Status = Models.IntelligentPlanning.StepStatus.Completed
                }
            };
        }

        public async Task<Models.IntelligentPlanning.WorkflowMetrics> GetWorkflowMetricsAsync(string workflowId)
        {
            return new Models.IntelligentPlanning.WorkflowMetrics
            {
                TotalDuration = TimeSpan.FromMinutes(5),
                CompletedSteps = 1,
                FailedSteps = 0,
                SuccessRate = 1.0f
            };
        }
    }

    /// <summary>
    /// 优化服务实现
    /// </summary>
    public class OptimizationService : IOptimizationService
    {
        private readonly ILogger<OptimizationService> _logger;

        public OptimizationService(ILogger<OptimizationService> logger)
        {
            _logger = logger;
        }

        public async Task<List<Models.IntelligentPlanning.OptimizationSuggestion>> AnalyzeOptimizationOpportunitiesAsync(Models.IntelligentPlanning.ExecutionResult result)
        {
            return new List<Models.IntelligentPlanning.OptimizationSuggestion>
            {
                new Models.IntelligentPlanning.OptimizationSuggestion
                {
                    Type = "Efficiency",
                    Title = "效率优化",
                    Description = "提升执行效率的建议"
                }
            };
        }

        public async Task<Models.IntelligentPlanning.OptimizationSuggestion> GenerateOptimizationSuggestionAsync(string type, Dictionary<string, object> context)
        {
            return new Models.IntelligentPlanning.OptimizationSuggestion
            {
                Type = type,
                Title = $"{type}优化建议",
                Description = "自动生成的优化建议"
            };
        }

        public async Task<bool> ApplyOptimizationAsync(string suggestionId, Dictionary<string, object> parameters)
        {
            return true;
        }
    }
}
